I Can't Take the Shot - Chicago PD Season 7 Episode 4

Upton was exposed to the outbreak after responding to a patient who collapsed on her. Will she become infected?
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I'll Handle This - Chicago PD Season 7 Episode 4

Halstead confronts the suspect responsible for causing mass hysteria and an outbreak in Chicago.
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Cover For Us - Chicago PD Season 7 Episode 4

Intelligence needs all the help they can get when looking for the man responsible for the outbreak so they loop in Platt.
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End This - Chicago PD Season 7 Episode 4

The man responsible for wreaking havoc in Chicago makes his motivations very clear when he goes after his number 1 target.
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Exes - Chicago PD Season 7 Episode 4

Burgess and Ruzek work alongside each other to find out what's causing the outbreak in Chicago. Will they find their way back to each other?
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Take Him Out - Chicago PD Season 7 Episode 4

After being exposed to the outbreak, Upton returns to work and is more driven to catch the guy responsible.
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First Week - Chicago PD Season 7 Episode 4

Rojas' first week in Intelligence has been nothing short of adventurous as she deals with bio-terrorism.
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Take the Lead - Chicago PD Season 7 Episode 4

Ruzek has a hunch about who could be responsible for the bio-terrorism infecting people in Chicago.
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The Suspect - Chicago PD Season 7 Episode 4

Burgess and Intelligence team up to find the suspect responsible for infecting Chicago.
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Find the Cure - Chicago PD Season 7 Episode 4

Halstead works alongside doctors from the lab and the lady from the CDC to find a cure for the bacterial infection.
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Det. Upton Is Torn - Chicago PD

Upton is torn between helping track down the perp and providing emotional support to the scared young girl that needs her on Chicago PD. "Infection Part 3" is the fourth episode of the show's seventh season.
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Chicago PD Season 7 Episode 4 Quotes

Ruzek: You and your ex-husband built a panic room. Some of this must make sense.
Seldon's wife: For when an outbreak happened, not for when he caused one. My ex-husband is not crazy, he's not a monster, he dedicated his whole life to infectious disease, and it's not paranoia. It's fear, it's educated and grounded fear. And look, all you have to do is turn on the news to see that there are a thousand ways the world could end. I mean, there's climate change, and there's famine, and there's the war, and then there's lack of water, and there's disease. And the right outbreak at the right time with the right factors, it could end this race within months and that's not paranoia. That is a truth that people can't handle looking at. And he had to look at it every single day.

We are not going to be led on a wild goose chase, we are not going to be led into a panic, look, he's buying time. We gotta get ahead of him now.

Voight